Dehydrating machine



J.A.HEANY.

DEHYDRATING MACHINE.

APPLICATION FILED OCT. 9, 1918.

Patented Apr. 25, 1922.

2 SHEETS-SHEET l.

INVENTOR ATTORNEY J. A. HEANY.

DEHYDRATING MACHINE.

APPLICATION FILED OCT. 9. 191a.

3414, 184. Patented Apr. 25, 1922? i l E L ,kol

\I w I a I i \i m \\\*11 k1 l .v lNl/ENTU/f 5 L75H/V/4LL aw/is'fl/vr Q i; Q MQM JOHN ALLEN HEANY, or NEW HAVEN, loonarncrrrour.

nnnynmrme MAGHJINE.

Application filed October e, 1918. Serial No. 257,539.

To all whom it may concern:

Be it known that I, JOHN ALLEN H-EANY, a citizen of the United States, residing at the city .of New Haven, county of New llzwen, andState of Connecticut, have invent-ed a certain. new andnseful Dehydrating Machine, of which the following specification is a full, clear, and exact description of the-invention, such as will enable others skilled in the art to which it appertains to make and use the same. Y

J This invention relates to a machine for dehydrating materials such as thoria,fz1rconia, and the like, .andmore particularly to mechanism in such a machine for extruding thev material to be dehydrated tihroi gh a .die warm a thread or the like which ,may be subjected to the: heat necessary to dehydrate it.

I I-t is the object ofgthisirnvention to provide in a machine of this character a mechanism whereby a massyof thoria or the like in plastic condition is formed into a long thread of small cross section.

An additionalobject .of the invention is the arrangement of the elements thereof so I that the machine will automatically perform its function'over a long period of time without attention. e

This machine is utilized in connection with an cry-hydrogen burner to dehydrate such materials as thoria and zirconia, which in their natural state contain quite a bit of 3' water of crystallization. -The thread of oxide is passed directly from the die of the machine through a burner, theflame from which is directed against the entire surface of the thread whereby the latter is subjected to the necessary heat.

Other objects, features and advantages of the invention will be apparent from a reading of the following specification and appended claims.

Referring now'to the drawings:

Fig. 1 is a perspective view of the machine, a small part being broken away.

Fig. 2 is a vertical longitudinal section;

Fig. 3 is a section on line 3-3 of Fig. 2.

The base 1 has at its ends the brackets 2 and 8. Journalled in the bracket 2 is the sleeve 4 carrying a pulley or worm gear 5 at one end and an elongated pinion 6 at the other end. Inside of this sleeve is a shaft 7 the sleeve. One end of this shaft is jourthan the pinion 8, and the pinion mentary body t Specification of Letters Qatent. Pafguebed 'Ap g 2 5,

nalled in the sleeve landthe other-end in pinion 8.. 'The'shaftis rotatable independently of the sleeve, and a clutch not shown, is provided whereby the shaft' and sleeve maybe made to rotate in unison.

The tubular member 9 issupported in the bracket 8 and has journal-led thereon the threaded sleeve 10 "to on end of which is attached the pinion 11. In the outerendjof the tubular member is-the threaded socket PM NTQFF H the bracketl. Keyed] to this shaft is the 12 in which is carried the barrel 1?). A we ic'alshaped die 141 is provided at the outer endoff the barreljand'fis jheldby means of'a cap 15 having an opening for the small end of'thef'die to extenc'l'throu gh. A'threaded follower 16 is mountedfoll; the sleeve 10 and carries a p'iston'l'f of'ja diameter about that of theinside diameter of the tubular me'mher '9. On the front endof the follower" is.

a pinion 18 A ,plunger 19 is provided which is pushed into the barrel 13 bythe piston 17. The pinion6 has one more tooth p I 18 has one less toothjthan the pinion 11. 7

A hollow'burner 20 issupported' .on

as. I

machine in alinernent with the die 14. for L the purpose ,of uniformly subjecting the filaa, high heat immediately" upon its exit'from the diet lower is moved toits proper position by re- 1n tjh'epperation' or -mydeviee the 01? leasing the shaft 7 from the sleeve ithroughj '7 the medium ;.of the'clutch 21 and rotating the shaft 7 relative to the sleeve 4, thereby,

causing the rotation" of the sleevelO. Since the follower 16 is prevented from rotation by the engagement of the pinions 6 and 18,

the follower can be quickly moved to the position shown in Fig. 2. The material to be dehydrated is mixed with a dissipating binder and the plastic mass is placed in the barrel 13. The plunger 19. is inserted a short way into the barrel 13-and then the whole thing is inserted in the tubular mem her 9 and the barrel is screwed into the socket 12, after which the piston is brought into engagement with the plunger. The

clutch isthen operated to lock together the shaft 7 and sleeve 41 and power is applied to the wheel 5. Dueto the fact that the pinions 6, 8, 11 and 18 have different num bers of teeth, the follower 16 will rotate a trifle slower than the sleeve 10 and will be fed along the thread on the sleeve, 10 very" slowly.- The piston 17 engages the plunger 19 pushing the same forward. This causes the material in the'barrel to pass through ber it is subjected to an oxyhydrogen' flame ,which drives off the binder and dehy'drates the material. The flame is conical in shape and so treats all portions of thethread-of refractory material alike., a

The specific embodiment of the machine as disclosedgin the drawings and specification is the preferred form of my invention, but I do not intend to limit myself to such disclosure but rather by the state of the art as disclosed by prior patents.

Iclaim as my invention:

1. In a dehydrating machine, a barrel, a shaft,a plunger reciprocatively mounted in said barrel, means to force said plunger through said barrel comprising a rotary threaded member, a threaded follower mounted on said shaft, means carried by said follower to .engagesaid plunger, and means to rotate said shaft and saidsleeve relativeito said shaft. r

2. In a. dehydrating machinea barrel, a plunger, means to force the plunger into the barrel. including a drive shaft, two pin ions on said shaft, one having more teeth than the other, a threaded sleeve rotatably mounted and encircling said plunger, a threaded follower engaging said threaded sleeve, pinions carried by said sleeve and follower andmeans on the follower to engage the plunger.

3. In a dehydrating machine, a barrel, a plunger reciprocatively mounted in said barrel, means to force said'plunger through said barrel, comprising a drive shaft, a second shaft surrounding said first shaft,

means to drive one of said shafts, means. to connect'and disconnect said shafts, a pinion on each shaft, a threaded sleeve rotatably mcunted'and surrounding said plunger, a

threaded follower engaging said sleeve, a

pinion on each of said last members, in mesh with one of the two above-mentioned p nions, three of the pinions having the same number of teeth, and the fourth having a different number, and means on the follower to engage the plunger.

4:. In a dehydrating machine'fa barrel, a plunger reciprocatively mounted in said barrel, means to force said plunger through said barrel, comprising a drive shaft, pin

ions driven by said shaft,a threaded sleeve rotatably mounted. and surrounding said plunger, a threaded follower engaging said sleeve, a pinion on each of said last members in mesh with one of the two abovementioned pinions, the pinions bearing such relation to each other that the follower rotates relative to the sleeve, and .means on rounding said plunger, a threaded follower engaging said sleeve, means between said drive shaft and said sleeve and'ffollower whereby said sleeve and said follower are rotated at different speeds, and means on the follower to engage the plunger.

G. In a dehydrating machine, a barrel, and means to'force the material to be dehydrated through said barrel, comprising a plunger tel". I s JOHN. ALLEN HEANY. j

and differential means for operating the hit- 

